Initially an interagency covert intelligence taskforce lead by Valentina Vostok (Negative Woman), the agency evolved into a group designed to perform task considered vital to the safety and interest of the U.S. Government.
Structured in a hierarchy resembling the pieces on a chessboard, the top agents are the Queen and King, who give orders to their Bishops, who in turn supervise their field directors known as Rooks who give orders to the Knights and Pawns that keep threats to national security in a state of Checkmate.
Members:
Mister Terrific (White King)
Valentina Vostok (White Queen)
Taleb Beni Khalid (Black King)
Sasha Bordeaux (Black Queen)
The Thinker (White King's Bishop)
Bad Samaritan (White Queen's Bishop)
August General in Iron (Black King's Bishop)
Jessica Midnight (Black Queen's Bishop)
Tommy Jagger (White King's Knight)
Rocket Red #1 (White Queen's Knight)
Fire (Black King's Knight)
Mademoiselle Marie (Black Queen's Knight)
Carl Draper (Castellan)
Other Known Members:
Spy Smasher II
Snapper Carr (Pawn)
Typical Checkmate Pawn
Former Members:
Harry Stein
Maxwell Lord
Detective Harvey Bullock
Arsenal
Peacemaker I
Vigilante II
Alan Scott
Amanda Waller
King Faraday
Count Vertigo
Villains:
Chang-Tzu
Villanous Groups:
Suicide Squad